KOSDAQ 9.08% plunge, 911.39closes…sidecar and circuit breaker activated
2026-06-08 KOSDAQ plunged during trading and fell 91.05points (9.08%) to close at 911.39. After opening at 959.61, the index decline reached 5%, triggering a sell-sidecar, followed by a circuit breaker that halted trading for 20 minutes before it resumed.
2026-06-08 KOSDAQ ended the session down 91.05points at 911.39. The index fell below the 900 level as the decline widened late in the session. The day’s close was recorded as a sharp drop from the previous day.
KOSDAQ opened 42.83points lower at 959.61. Selling pressure remained dominant immediately after the open. The index’s weakness gradually intensified during the morning session.
As the index decline reached around 5%, a sell-sidecar was activated. This was the fourth activation of the year. The sidecar imposed some trading restrictions.
As the decline continued, a circuit breaker was triggered and trading was 20halted for minutes. 20Trading resumed minutes later. The index remained weak even after the resumption.
The trading halt and the activation of the sidecar were the key events in the KOSDAQ market that day. Investor order flows and trading speed contributed to the expansion of intraday volatility. Market participants and investors monitored price movements after trading resumed.